Oxygen-acetylene welding-torch.



P. L. SEER.

OXYGEN ACETYLENE WELDING TRCH.

APPLICATION FILED )UNE I2, i916.

Patented Aug. 14, 1917.

' ns1/HE 2,

H15 ATTORNEK rAUL L. onlin, or san Josu, CALIEonNIA.

OXYGEN-AGETYLENE WELBING-TSRQH.

speicauon of Leiters raient. Eatented Aug. 14, 1917.

Apneajiqn filedY June 12, 1916, Serieel No. 19.3332.

To ull `uli/'wm it muy; confers Be it known that I, PAUL L. Gunn, a citizen of the llnited States, residing atpSen Jose, in the county of Sante Clara and State of California. have invente-d certain new and useful Improvements in OXygen-Acetylene ll'eiding-Torehes, of which the following is a specification.

This invention relates to an improvement in adjusting means for oxygen acetylene Welding torch, and particularly to a means for varying the mixture of oxygen and acetylene gas, vwith a View to maintaining the heating etlticiencyand producing a neutral iiaine.

T he main object of the present invention is to provide a Welding torch that may be light and durable, and one in which the nozzle and tube is integral, and of various lengths, and bent in various Ways as to the work required of the saine, and one in which ditlerent nozzles may be used as to the Work required, and one in which the different nozzles may be connected by hand without the use of a Wrench.

This invention in the preferred form of details will be described in the following specification, reference being had to the accon'ipauying drawings, in which:

Figure 1 is a side elevation of my oxygen acetylene Welding torch assembled, showing valves, tubes, pipe connections, and torch nozzle stein with coupling nut in position, parts broken away.

Fig. 2 is a sectional View of my oxygen acetylene welding torch with needle Valves and nozzle tube removed.

Fig. 3 is a detail sectional View of the nozzle tube and cone connection with nozzle coupling nut on said nozzle tube.

Fig. i is a detail Yview of the acetylene gas adjusting screw.

Referring to the drawings, 1 indicates a metal tube having a metal threaded portion 2 which is made an integral part of said tube 1, said threaded portion 2 having a coupling seat 3, and a threaded portion d on which is screwed nozzle tube coupling nut 5, by threads da. At the bottom of said coupling seat 3 is shown needle opening 6, connecting with small metal pipe 7, the same leading back longitudinally through tube 1 to needle valve 8, through which the oxygen is admitted under pressure through hose pipe connection S, and regulated by said needle valve 8, said pipe 7 and the casing of valve S hengrruade an integral part of tube 1.; t the side and a distance up from the bottom of said coupling seat 3, is a needle opening 9, consenting with small metal pipe 1Q, the Vsaule leading back longitudinally through tube l to needle valve 11, through which the acetylene gas israduiitted' under :prsure through hose connection 11, and

regulated by said valve 11, said pipe 10 and the casing ot' Valve 11 being made an integral part of tube 1.

Metal nozzle tube is shown at 12, the tip 13 thereof being made solid and is an integral part of said nozzle tube 12 having a suitable opening as shown at 14, said tube 1Q having a cone coupling 16 at the lower end thereof, said cone coupling 1G being made an integral part of nozzle tube l2; a groove 1T is cut in cone coupling 16, adapted to connect With needle opening 9 in coupling seat 3, from said groove 17 is a needle opening 1S connecting with longitudinal opening 19, in coupling 16, said opening 19 connecting With nozzle tube 12 through which the acetylene gas is admitted under pressure through pipe 10, said opening 19 being threaded to receive acetylene gas adjustable screw 20 therein, said screw 20 haring a needle opening 21 longitudinally there through through Which the oxygen is admitted to tube 1Q under pressure, said adjustable screw Q0 being adapted to regulate the amount of acetylene gas admitted to tube 12 through needle opening 1S by adjusting the unihreadcd portion 22 of said adjustable screw 20 into opening 19 past opening 18, this not only regulates the amount of acetylene gas entering into tube 12. but causes a most thorough mixture of the oxygen and acetylene gas passing into tube 1Q. l do not Wish to confine myself as to the length of nozzle tube 12 or as to the shape or bend of the samev` different lengths and dii'erent bends may be used for the unlimited Work to which this welding torch is adapted.

Haring thus described my invention, what I claim as new and desire to secure by Letters Patent is:

In au oxygen acetylene welding torch, the combination of a metal tube having a threaded metal portion which is an integral part thereof, a nozzle tube coupling nut, a coupling seat in said threaded portion, a needle opening through the side of said coupling seat, a metal nozzle tube the tip thereof being made solid having a suitable opening made therein, said inetal nozzle tube having a Cone coupling at the lower end thereof, a longitudinal threaded opening in said cone coupling, said cone coupling being an integral part of said nozzle tube, a groove eut in said cone coupling, adapted to connect with said needle opening in the side of said coupling seat, an opening in said cone coupling leading from said groove and connecting with the longitudinal opening leading to said nozzle tube through Which acetylene gas is admitted to said nozzle tube under pressure, and an adjusting screw having a needle opening longitudinally therethrough adapted (o deliver the oxygen through said needle opening to said nozzle tube under pressure, and to regulate and mix the oxygen and acetylene passing into said nozzle tube, substantially as and for the purpose described.

ln testimony' whereof l have hereunto af- Xed my signature in the presence of two Witnesses.

PAUL L. GEER.

Witnesses C. E. LODGE, E. L. ERWIN.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. U." 

